What is the theory of plate tectonics?

Answer: Newton's law of universal gravitation is usually stated that every particle attracts every other particle in the universe with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers

Answer:

Newton’s law of gravitation, statement that any particle of matter in the universe attracts any other with a force varying directly as the product of the masses and inversely as the square of the distance between them.

Answer:

35.72 m

Explanation:

Given:

v₀ = 0 m/s

a = 9.8 m/s²

t = 2.7 s

Find: Δx

Δx = v₀ t + ½ at²

Δx = (0 m/s) (2.7 s) + ½ (9.8 m/s²) (2.7 s)²

Δx = 35.72 m

Answer:

The revolution of the earth around the sun and the tilt of the earth's axis cause the changing of the seasons.

Explanation:

The Earth's rotation causes day and night, while its revolution causes seasons. This happens due to how the rotation exposes different parts of the Earth to the sun, and how the tilt of the Earth's axis during revolution causes varying sunlight exposure.

The rotation of Earth on its axis causes day and night. This astronomical phenomenon happens because as the Earth rotates, different parts of it are exposed to the Sun's light, creating the cycle of day and night. On the other hand, the revolution of the Earth around the sun causes the seasons. As the Earth orbits the Sun, the tilt of our planet's axis causes different parts of the Earth to receive varying degrees of sunlight throughout the year, which results in the changes in weather conditions we know as seasons.

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Answer:

A) Light waves are restricted to a single plane through the lens.

Explanation:

Took the quiz and got it right

Final answer:

The view inside a lens differs from the outside because light waves refract in multiple directions within the lens, a process essential for lenses to form images by bending light.

Explanation:

The view within the rectangle lens is different than the view outside the lens because light waves refract in multiple directions through the lens. When light waves enter the lens, they experience refraction both when they enter and exit the lens medium. The concept of refraction is inherently three-dimensional and is based on the principle that when light passes through variations in matter, its direction changes due to the different speeds at which light travels in different media. This bending of light is essential for lenses to redirect light and form images, whether they are magnified, shrunk, or inverted.

Lenses like the eye's crystalline lens or a microscope's glass lens use refraction to form images by bending light towards or away from the line perpendicular to the boundary surface. The thin lens approximation simplifies this process by considering the double refraction through the lens as a single change in path occurring at the plane of the lens. An example of this principle in action would be rays of light entering a diverging lens and appearing to originate from its focal point due to their diverging paths.

Answer:

The fundamental law of magnetism states that like poles repel and unlike poles attracts each other

North and South = attraction

South and North = attraction

Explanation:

What are magnetic poles?

The magnetic poles are the two points at The end of a magnetic bar in which the magnetic properties are most pronounced.

When two opposite magnetic poles are close, they attract each other. When like poles are pushed together, there is a force of repulsion. The rule for magnets is that like poles repel and unlike poles attract.

Answer:

C.) Set C

( It says unlike poles)

Answer:

magnetic, gravity, electrostatic all are field forces

Explanation:

help this help! :)

Among the options provided, both magnetic force and electric force are examples of field forces. Thus, option 1 and 2 is correct.

Magnetic force arises due to the interaction between moving charges or magnetic dipoles in a magnetic field. It is responsible for phenomena such as the attraction or repulsion between magnets, the operation of electric motors, and the behavior of charged particles moving through magnetic fields. Magnetic fields are produced by moving charges or currents, creating a force that acts on other moving charges within the field.

Electric force, similarly, arises from the interaction between charged particles within an electric field. This force is responsible for the attraction or repulsion between charged objects, the operation of devices like capacitors, and the behavior of charged particles in electric fields. Electric fields are created by static charges or changing magnetic fields, exerting a force on other charged particles within the field.

Both magnetic and electric forces are examples of field forces because they are transmitted through fields (magnetic or electric fields, respectively) and act at a distance without direct contact between the interacting objects. Conversely, normal force and gravitational force are contact forces, as they require physical contact between objects to manifest.

The answer is: B.

speeds above 343 m/s.

:)

Supersonic speeds is speed which is above 343. Hence option B is correct.

Speed is a rate of change of distance with respect to time. i.e. v=dx÷dt. Speed can also be defined as distance over time i.e. speed= distance ÷ time. It is denoted by v and its SI unit is m/s. it is a scalar quantity. Speed shows how much distance can be traveled in unit time.

To find dimension for speed is,

from formula Speed = Distance ÷ Time

Dimension for distance is [L¹] ,

Dimension for Time is [T¹],

Dividing dimension of distance by dimension of time gives,

[L¹] ÷ [T¹] = [L¹T⁻¹]

Dimension for speed is [L¹T⁻¹].

Supersonic speed is the speed of an object that is above the speed of sound. For objects traveling in dry air of a temperature of 20 °C. Speed of the sound is 343 m/s in dry air.

Hence Option B is correct.

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Thermoelectric generator is the method by which an electrical potential developed in generators and thermocouple.

Explanation:

Answer:

Electric generators develop an electric potential via magnetic induction. Moving a conducting rod through a magnetic field that exists between the poles of a horseshoe magnet causes an electric potential to be set up in the rod. Free electrons move through this rod from one end to the other for as long as movement of the rod is maintained. The direction of this movement depends on whether the rod is moved across the lines of force in the magnetic field in either the opposite direction or the same direction. Generators usually consist of multiple conductors mounted on a cylinder that rotates in a magnetic field.

Thermocouples utilize heat to develop an electric potential. Two strips of different metals are connected at one end to form a junction and the other ends are kept apart. A heat source is applied to the junction; this causes each metal strip’s temperature to rise at the junction. The free ends aren’t as hot and electric charges are produced at these free ends. Because the strips consist of different materials, there's a difference of potential between these free ends; when connected by a conducting wire, the electrons can move through the pathway. The voltage that's produced will become greater as the difference in temperature between the free ends and the junction increases.

Answer:

Belgium

France

Luxembourg

Explanation:

These are the ones that are in the High Productivity chart, but not in the HDI chart

The countries have high productivity, but are not among the top 10 for human development are Belgium, France and Luxembourg.

Productivity is the making the maximum use of any product or time or machine.

The ones that have high productivity, but not in the human development chart are Belgium, France and Luxembourg.

The productivity is also achieved by the humans, but what if human is not developing.

Productivity and human development must be on the same balance for any country.

Thus, correct options are  Belgium, France and Luxembourg.

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Answer:

got this on google and got it right

Explanation:

An example of inductive logic is, "The coin I pulled from the bag is a penny. ... Even if all of the premises are true in a statement, inductive reasoning allows for the conclusion to be false. Here's an example: "Harold is a grandfather. Harold is bald.

Inductive reasoning is when someone observes data, recognizes patterns within these observations, and then draws a conclusion on these observations that they found.

Let's look at an example.

A 12-oz. coke bottle exploded after an hour in the freezer.

A second 12-oz. coke bottle exploded after an hour in the freezer.

The reasoning that was used here was inductive reasoning.

Although we might want to test a few more 12-oz. coke bottles, we can tentatively conclude that all 12-oz. coke bottles will explode after an hour in the freezer.

Since were using oneservations and recognizing patterns to draw a

conclusion, our conclusion is based on inductive reasoning.

Answer:

a body is projected harizontally with a velocity of 25m/ s of a tower for high caculate 1 the time of flight 2 the harizontal range 3 the velocity with which it lit the ground

The interstellar matter within the Milky Way galaxy primarily contributes to the formation of new stars, not new galaxies, new universes, or new constellations. Constellations are not formed but are simply patterns or configurations of stars as observed from the Earth.

The Milky Way galaxy, which is the galaxy that contains our solar system, is composed of various forms of interstellar matter that include stars, dust, and gas. This interstellar matter has the potential to contribute to the formation of new celestial bodies. Forming new galaxies or new universes as suggested in the question, however, is not typically attributed to the interstellar matter within the Milky Way itself.

Instead, the interstellar matter in the Milky Way is primarily involved in forming new stars. This occurs when dense regions of dust and gas collapse under their own gravitational pull, thus initiating nuclear fusion and creating a new star.

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Answer:

Answer would be 0.33

Explanation:

Calculations

Answer:

The answer is 0.33

Explanation:

because if (v2-v1)/(t2-t1)

then if you fill it in then you could definetly get the answer.

Answer:

The gas enclosed in a container with rigid walls is at a pressure of 150,000 Pa. The temperature of the gas is 27 ° C. At what temperature in Kelvin and degrees Celcius does the gas have to be heated so that the pressure is 300,000 Pa?

Explanation:

Given that,

When the temperature is 27°C, it's pressure is 150,000 Pa

Then,

T₁ = 27°C

Let convert to Melvin

T₁ = 27 + 273 = 300K

P₁ = 150,000 Pa

What's the temperature when it is heated to a pressure of 300,000 Pa

T₂ =?

P₂ = 300,000 Pa

Since the gas is in a rigid wall container then the volume does not change so,

V₁ = V₂

Using Gay Lussac law,

P₁ / T₁ = P₂ / T₂

Making T₂ subject of formula

T₂ = P₂ × T₁ / P₁

T₂ = 300,000 × 300 / 150,000

T₂ = 600K

So, converting to °C

°C = K - 273

°C = 600 - 273

°C = 327 °C

Then, the final temperature at 300,000 Pa is 600K OR 327°C

So, using Spanish

Dado que,

Cuando la temperatura es de 27 ° C, su presión es de 150,000 Pa

Entonces,

T₁ = 27 ° C

Deje convertir a Melvin

T₁ = 27 + 273 = 300K

P₁ = 150,000 Pa

¿Cuál es la temperatura cuando se calienta a una presión de 300,000 Pa?

T₂ =?

P₂ = 300,000 Pa

Como el gas está en un contenedor de pared rígido, el volumen no cambia,

V₁ = V₂

Usando la ley Gay Lussac,

P₁ / T₁ = P₂ / T₂

Hacer T₂ sujeto de fórmula

T₂ = P₂ × T₁ / P₁

T₂ = 300,000 × 300 / 150,000

T₂ = 600K

Entonces, convirtiendo a ° C

° C = K - 273

° C = 600 - 273

° C = 327 ° C

Entonces, la temperatura final a 300,000 Pa es 600K o 327 ° C

1 electron's charge = -1.602 x 10⁻¹⁹ Coulomb

890 electron charges = (890)·(-1.602 x 10⁻¹⁹ C) = -1.426 x 10⁻¹⁶ C

Answer:

planet y

Explanation:

Answer:

y

Explanation:

Final answer:

Pictures of valleys on a planet's surface can indicate the presence of water, a critical natural resource, whereas other features like craters or rocks might suggest different geological aspects but not specific resources.

Explanation:

When considering pictures of a planet's surface to provide evidence about the planet's natural resources, there are specific indicators to look for. For instance, valleys often signify past or present water flow, as they are typically formed by this process. Figure 10.30 from Gale Crater and Underground Ice Deposits demonstrates this, showing cross-bedded sandstone, which geologists interpret as evidence of liquid water activity. Therefore, valleys on a planet's surface can indicate the presence of water, which is a crucial natural resource. Other features, such as craters or rocks, may suggest geological activity, age, or the presence of minerals, but not necessarily specific resources like gold or natural gas without additional data.

Answer:

[tex]|M_y| = 170.82 \ N.mm[/tex]

Explanation:

From the diagram affixed below completes the question

Now from the diagram; We need to resolve the force at point  A into (3) components ; i.e x.y. & z directions which are equivalent to [tex]F_x \ , F_y \ , F_z[/tex]

So;

[tex]F_x[/tex] = positive x axis

[tex]F_y =[/tex] Negative y axis

[tex]F_z[/tex] = positive z axis

Then;

[tex]|M_x| = F_y *27-F_z*11 = 77 ----- equation(1) \\ \\ |M_z| = F_y*4 - F_x*11 = 81 ---- equation (2) \\ \\ |M_y| = F_x *27 - F_z *4 = ? ---- equation (3)[/tex]

From equation (1); Let's make [tex]F_y[/tex] the subject of the formula ; then :

[tex]F_y = \frac{77+11F_z}{27}[/tex]

Substituting  the value for [tex]F_y[/tex] into equation (2) ; we have:

[tex](\frac{77+11F_z}{27})4-F_x*11=81 \\ \\ 11(\frac{7+F_z}{27} ) 4- F_x -11 =81 \\ \\ 28+4 F_z - 27F_x = \frac{81*27}{11} \\ \\ 4F_z - 27F_x = 198.82 -28 \\ \\ 4F_z - 27F_x = 170.82 \\ \\ Since \ |M_y| = 4F_z-27F_x \\ \\ Then: \\ \\ \\ |M_y| = 170.82 \ N.mm[/tex]

Answer:

1.27 s

Explanation:

throwing keys are dangerous

Answer:

The crests of the sound wave are spaced closer together.

Explanation:

the wavelength between successive crests is decreased due to the motion of the truck in the same direction as the sound

Answer and Explanation: The Doppler effect is a change in the frequency of sound waves that occurs when the source of the sound waves is moving relative to a stationary listener. As the source of sound waves approaches a listener, the sound waves get closer together, increasing their frequency and the pitch of the sound.

Hopefully that helped!

Answer:

The answer is A i think :)

It can be used to clean small items like jewelry

It can be used to clean large items like machinery

Statements 2 and 3 accurately describe the uses of ultrasound technology.

It is a widely used technology in all fields.

Diagnostic ultrasonography, commonly known as sonography is an imaging technique that produces pictures of inside body structures using high-frequency sound waves.

The pictures can aid in the diagnosis and treatment of a wide range of illnesses and ailments.

The ultrasound wave helps in the following applications;

1. It can be used to clean small items like jewelry.

2. It can be used to clean large items like machinery.

Hence statements 2 and 3 accurately describe the uses of ultrasound technology.

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